Westerdale is a civil parish in the county of North Yorkshire, England. It contains 25 listed buildings that are recorded in the National Heritage List for England. Of these, four are listed at Grade II*, the middle of the three grades, and the others are at Grade II, the lowest grade. The parish contains the village of Westerdale and the surrounding countryside and moorland. Most of the listed buildings are houses, cottages and associated structures, farmhouses and farm buildings, and the others include two wayside crosses, a bridge, a guidestone, a monument and a church.